Preheader is not visible

[MuhammedSuhail]

When we apply Arabic content, preaheader isn't available in pane mode in outlook version as you see below, instead it appears View in browser text. If you include any English word along with Arabic, that English word only appears. We also noticed last part of Subject line appear if you have lengthy subject line ( I assume that is because Arabic letter format)              

Please let me know if you have any way to resolve this issue? Thanks!

[Disha_Goyal6]

Hi  @MuhammedSuhail, 

Did you add the pre-header code or is it Marketo by default functionality?

[ilona_buteneers]

Hi there, 

What do you mean the preheader is not visible in pane mode in Outlook version? 

I just did a test and as it's supposed to be it's perfectly showing in Outlook (I'm using Mac). Similarly as you are showing in your screenshot. 

Regarding Subject Line, please be aware that you should limit the number of characters to 50. 

For Preheader, best practice is to limit with a max. of 80 characters. 

Feel free to further clarify your question and I'm happy to help. 

Kind regards

Ilona 

[SanfordWhiteman]

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Regarding Subject Line, please be aware that you should limit the number of characters to 50. 

For Preheader, best practice is to limit with a max. of 80 characters. 

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You need to be careful to distinguish characters as in glyphs (like ل) from characters as in bytes/octets (like the Q-encoded version of ل which is =D9=84).

Limiting the length in glyphs is done for largely cosmetic reasons, i.e. on small-width devices and columnar app views.

Limiting the length in bytes, however, is mandated by the SMTP spec. Subject lines always use Q-encoding. Which means every double-byte Arabic character uses 6 bytes in the Subject. Most servers will not accept a Subject line over 998 bytes, and some will discard anything over over 255 bytes. Therefore a Subject line with only 40 Arabic characters is already butting up against the hard technical limit (40 * 6 = 240).