How to Fix Image Problems in Apple Mail Email Signatures


Apple Mail can be a problematic email client at times, especially when it comes to email signature images not displaying correctly.

When your email signature images are not showing up in Apple Mail, there are a few ways you can fix this, depending on the situation and the symptoms.

Let’s take a look at a few different scenarios.

Images Are Not Visible When Installing an Email Signature

So, you’ve created a flash new email signature and pasted it into the email signature window in Apple Mail and cant get the images to show up? Well, believe it or not, this is quite a common problem, which is easy to fix.

If you have images in your email signature, it is likely created in HTML format. So, when you paste your email signature into the new signature window, you want to ensure it is still formatted in HTML.

To fix this problem:

When installing your email signature, ensure you untick the box at the bottom of the signature preview window which says โ€œAlways match my default message fontโ€ as this will turn your email signature into plain text format, instead of keeping the HTML format of the signature.


Images in Email Signature Are Not Visible When Composing a New Email

When you create a HTML email signature in Apple Mail, you would expect the images to be visible when you compose a new email, right? Well, that’s not always the case. Occasionally, the images in your HTML signature won’t be shown and you will see plain text instead.

This happens because your Apple Mail is set to compose new emails using Plain Text format, instead of Rich Text format. Also, for some reason, Apple Mail refers to HTML format as Rich Text. So, when you select Rich Text format, it actually includes HTML format too.

To fix this problem:

Open Apple Mail and do the following steps:

Click on Mail > Preferences > Composing tab > Message format > Select “Rich Text”.


Images in Email Signature Are Not Automatically Downloading When Viewing an Email

When you receive emails in Apple Mail, sometimes the images in email signatures won’t automatically download, and this can be really annoying.

Although there can be a few reasons for this sort of thing happening, most of the time it’s because your Apple Mail is set to not load remote content in messages.

To fix this problem:

Open Apple Mail and do the following steps:

Click on Mail > Preferences > Viewing tab > Ensure that “Load remote content in messages” is ticked.

Other reasons this problem might happen:

  • Your anti-virus program is detecting a threat with the email signature and automatically blocks the image downloads when it scans the incoming email. In this case, you would need to make an exception rule in your anti-virus application.
  • The mail server is blocking the image downloads of incoming emails due to policies that have been applied. To stop this from happening, you would need to contact your server administrator.

Images in Email Signature Are Not Visible When Replying to an Email

When replying to emails, your email signature shows up as plain text and doesn’t have any images in it and also loses its formatting. This happens when someone sends you a plain text email, and you reply to it.

By default, Apple Mail will use the format which the email was created with when responding to emails. So, if someone sends you a plain text email and you reply, it will remain in plain text format.

To fix this problem:

You can change the way Apple Mail handles replies and tell it to reply to emails using your chosen message format.

Open Apple Mail and do the following steps:

Click on Mail > Preferences > Composing tab > Ensure that “Use the same message format as the original message” is unticked.


34 Replies to “How to Fix Image Problems in Apple Mail Email Signatures”

  1. My client is using iCloud for her email? I do not have access to her machine. Is there a way to install remotely?

    1. Hi John,

      If you don’t have access to her machine, you could log onto her iCloud account from your computer if you know her password and then install the signature.

  2. Hey there.

    I have created an email signature in Apple Mail. It is some text, followed by a small image.

    I am having an issue where when I have a conversation thread (more than 1 reply), it seems to copy the image over and over again. I end up with 3-4 of my email signature image at the bottom.

    Anyone had this issue before and do you know how to resolve it?

    1. Hi Isaac,

      Generally, if you have your email signature set up to insert on replies as well as new messages, the number of times the email signature will appear at the bottom will be the same as the number of times you replied to the email thread.

      So, if you replied to the email 4 times, you will likely see 4 of your email signature images at the bottom.

      Hope that makes sense ๐Ÿ™‚

  3. Hello John,

    I’m having an issue with pasting an HTML signature into the email signature preferences in Apple Mail. I’m able to copy the HTML into every other person’s email in the office, but not this one computer.

    When I paste the signature, it distorts the images attached to the signature and puts them on different lines. This issue is not happening for anyone else, just this computer.

    1. Hi Andrew,

      It sounds like your image might be getting blown up to be larger than usual? If this is the case, you need to make your image 72 DPI. If your image is larger than 72 DPI it will blow out to be large in Apple Mail. Take a look at this article for more information about this:

      If you’ve got an account with Gimmio, feel free to email with a screenshot of the issue and we will take a look into it for you!

  4. Hey Gordon,
    I am using the mail app on my mac and have an email signature with several images. When I send any significant messages beyond just the signature it converts my images into attachments in Gmail accounts only. So if I open the BCC I sent myself in my mail app it is fine however, if I open it in my Gmail on any given browser… no dice. Also, if I just send my signature, the signature appears fine… only when I couple it with my email and any other attachments which I need for work. I have tried all your solutions and nothing seems to work… hoping you had some outside advice. Thank you.

    1. Hi Jared,
      That is very strange! I definitely haven’t heard of that one before!
      My only guess here would be that for some reason Gmail is scanning the message and if it already finds an attachment in it, it decides to attach all the images in the signature as well. But that seems far fetched…
      What happens if you simply send an email with content in the body with your email signature, with no attachments? Does Gmail show the signature correctly?

      1. Hey Gordon
        My signature on mail is text and a small imagem and I just went throught all theses posts about the signature problems with mac mail and recently, as the mail has the new option of a more user friendly attachments at the end of the message instead of the inline attachments, when I send an e-mail with or without attachments, when I open it on outlook for example it all shows as attachements.
        Do you have any fix for this situation?
        It would have to show my signature image inline and attachments as attachments not inlined.

  5. Hi Gordon,

    I am trying to create an email signature (and stationery) that consists of a transparent rectangle with a coloured border, inside which is text e.g. name, telephone and email. Immediately under rectangle is a solid color rectangle the same width as the one above and inside it is a white image. There is no gap between the two.

    I have tried all sorts of ways but the closest I have got is to do it in two parts: the rectangle above with text inside and the solid colour rectangle below. Trouble is when I save it as a signature I cannot get the two to sit one on top of the other with no gap. Either the solid colour rectangle is positioned to the right and not quite below the bordered rectangle or, if I hit return it sits below it but with a one line gap. The original is perfect. Any ideas how to solve this?

    1. Hi Mervyn,

      Just to confirm, are you trying to create your signature using Gimmio, or manually coding it? If you’re manually coding it, there could be a lot of different issues as to why the bottom rectangle doesn’t sit directly below the transparent rectangle. For example, sending emails with Gmail will automatically add spacing between elements in an email signature, and there is no way to change that. If 2 elements need to be together (such as the rectangles), you may need to keep them together in the HTML code rather than separating them into separate tables. If you’re using Gimmio, feel free to send us an email to and we will happily take a look into the issue for you.

  6. Hi Gordan. I am trying to add a LinkedIn image link to my email signature. I put the image in the signature and then highlight the image and add the link, but it doesnt save as a hyperlink. When I go to test it and create a new email, the image is there but there no link. When I go back in to preferences and check the link it doesnt save, there’s nothing there. ???

    1. Hi Erin,

      Oftentimes with Apple Mail and many of the other popular email clients, you cannot click the hyperlink when you’re composing a message (or in the signature preferences either). To get around that, you will need to hold down the Command (or Ctrl on PC) button on your keyboard and click on the link. This all works if the link has been placed into the email signature correctly, of course. If you’re using Gimmio to create your signature, feel free to email us at for further assistance and we will be glad to help ๐Ÿ™‚

    2. Hello, Can you please elaborate more how did you sort out this problem? as we are facing the same linking problem in our company logo. quick reply will be appreciated.

  7. Hello. I created an email signature, and created the HTML code and everything. The signature is working fine on the Gmail, but when on MacBook, it’s becoming background image. Like the texts are getting over the signature. Can’t select or move the signature. Why is this happening?

    1. Hi Tee,

      Did you create your signature manually or did you create it using Gimmio? That definitely shouldn’t happen with a Gimmio signature and ill be happy to take a look if that is the case. Feel free to email our support team at and we will assist you. If you created the signature manually, there could be many reasons for this type of thing happening and I couldn’t give you an exact answer, unfortunately.

  8. Unfortunately, I cannot seem to highlight the image to put a web link on it once it is in the signature box. When the image is in the correct place, I am supposed to be able to highlight it and then click edit to add a link. However, I can’t get the image to highlight for some reason.

    1. Hi Connor,

      Generally, we only suggest creating email signatures and adding links outside of Apple Mail and then pasting it into Apple Mail. I wouldn’t add a link to an image when the signature is already installed in Apple Mail as this could cause formatting issues.

    1. Hi Stuart,

      I believe that JPG, JPEG, PNG and GIF are accepted by Apple Mail so it should be fine to use any of those file types.

  9. Hi Gordan
    I have a different issue with my signature in mail.
    I am unable to edit the existing signature (that I made years ago) or create a new signature for my new ‘business’ email address which I’ve added to Mail.
    When I click ‘Edit signatures’ in a new mail. The box comes up as a blank grey box which I can’t do anything with – there’s no curser – no way of adding any info. The same happens when I go through Preferences – It’s very frustrating. Can you help? Hope so ๐Ÿ™‚

    1. Hi Bee,

      I’ve never seen that sort of thing happen where you cannot edit an existing signature in Apple Mail and where its just a grey box. It sounds like it could be some sort of bug in Apple Mail. Perhaps Apple support could take a look at it? Sorry I couldn’t be of further assistance.

  10. Hi Gordan,

    I have updated an image for our signature email banner – the file name is the same and it is sitting on our server. When I compose an email I can see the new banner but once I send a test email to myself, in my inbox it is showing the old version of that image.

    1. Hi Addie,

      It sounds like the old image is cached somewhere on the server and when an email signature requests the image, it is being served with an old (cached) image. You may need to clear your cache to make it work.

  11. Hi
    I have a problem with trying to move a graphic from next to my signature to underneath it, but every time I move it, it jumps back into its old position. I edited it in “signatures”, but to no avail. Is there a fix ?

    1. Hi Marion,

      Sometimes it can be difficult to change the styling or layout of an existing email signature inside of Apple Mail (and other email clients too). The email clients themselves aren’t really made for creating/modifying HTML, they only render it. I would suggest using Gimmio’s Email Signature Generator to create your signature. That way, if you have an active subscription, you can always modify it at another time without having any issues.

  12. hi there – i have copied html signature and and unclicked ‘always match my default’ but the images are stcaking on top of each other rather than sitting side by side… do you know how i can make them sit side by side?

  13. I created a signature using a hand written font for my name, however when sending to Outlook the signature changes to a default font. Tried all the options, is it worth using Outlook instead as I never has issues with this when using MS Software?

    1. Hi Martin,

      This is likely happening because you don’t have the handwritten font installed on your PC. When choosing a font that is not web-safe on Gimmio, the following warning appears:

      Fonts need to be installed on the email recipient’s device to work.
      If you use any of our extra fonts ( denoted with an * ), remember that Gimmio is designed to revert to a similar compatible font.

      I would suggest using a web-safe font for your email signature. Here’s a list of web-safe fonts:

      Hope this helps.

  14. Macbook won’t save my signatures. EVER. No matter what I do and IStore say I should do a full restore of my Macbook… May be that will help? But now my external hard drive is not being recognised by my Macbook, no matter what I do… I plug it in, enter time machine and the back up disc says last back up March 2019!! So no full restore as I cannot perform a full back up!
    Cannot save signatures, cannot do a full back up? IStore couldn’t make heads or tales of why signatures not being saved either….

    1. Hi Lynn,

      Unfortunately, I cannot really tell what the issue would be in this case. Perhaps the system is out of disk space and therefore cannot save any new signatures? Sorry I couldn’t help more.

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